Hard disk is a device
vulnerable to damage. As a most important part in computer, the bad sectors
happen may lead to the computer won’t wok properly. Possibly it cannot enter in
the operating system, or blue screen happened after entered in system, or
constant self-test of hard disk on boot screen.
If the above
situations happen, you have to check if there are bad sectors on your
hard disk.
There are a lot of
reasons for bad sectors. It has a direct relationship with our daily
illegal operation and use. But what are
the incorrect operation may lead to bad sectors?
1. Improper shutdown. Improper shutdown or sudden power loss are the
main causes of bad sectors. Because the disc is in a state of high-speed
operation when hard at work. The head is reading data stored on the disk. Once
you shut down the computer, the head will reset quickly. That may lead to
excessive friction between head and disc platter.
2. Static electricity. Electrostatic damage for computer hard disk is
beyond our imagination. In general, if we directly touch the back of the drive
circuit board, the static electricity carried by human body may damage the
electronic components on the hard disk, causing the hard disk can not work.
3. High temperature. Hard disk will generate heat after a long time
use. Temperature between 20 to 25 degree centigrade are the most
suitable temperature. Overheating will lead to electronic components
failure of the hard disk. The heat effect may cause a recording error in
disk medium. If the temperature is too low, moisture in the air will condense
on the circuit components that causes a short circuit.
4. Shock. Sever impact and long time working in a vibration
environment is likely to cause hard disk platters and heads cannot fit tight so
that cause head fracture. If the fracture occurs in work, it may be more
serious.
5. Dust. Dust causes serious damage to hard disk. The platter is in
close contact with the head. It does not allow any dust on platter. If there
has dust falling on the hard disk, then the hard disk will be damaged soon. It
is why hard drive opening needs to done in a dust free environment.
These are the most
common causes for bad sectors. You should take care of your hard drive in daily
use to extend life and reduce the chance of hard disk damage.
But the hard disk bad
sectors can be fixed? How to fix and recover files from hard drive?
Once you found your
hard disk has problems, you can backup all the data first and then ask the
professional data recovery center to help you to open and repair hard disk.
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